package com.wxmit.framework.web.operatelog.aspect;

import cn.hutool.core.util.ObjectUtil;
import com.wxmit.base.enums.BusinessStatus;
import com.wxmit.base.util.JsonUtils;
import com.wxmit.base.util.ServletUtils;
import com.wxmit.base.util.StringUtils;
import com.wxmit.framework.satoken.core.util.StpUserUtil;
import com.wxmit.framework.web.operatelog.Log;
import com.wxmit.framework.web.operatelog.LogModule;
import com.wxmit.system.api.OperateLogApi;
import com.wxmit.system.domain.LoginUser;
import com.wxmit.system.domain.SysOperateLogDTO;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.NamedThreadLocal;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;
import org.springframework.validation.BindingResult;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.HandlerMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Collection;
import java.util.Date;
import java.util.Map;
import java.util.Objects;

/**
 * 操作日志记录处理
 *
 * @author Lion Li
 */
@Aspect
@Slf4j
@Component
public class LogAspect {

    @Autowired
    private OperateLogApi operateLogApi;

    /**
     *  存储操作开始时间
     */
    private static final ThreadLocal<Long> OPERATE_BEGIN_THREADLOCAL = new NamedThreadLocal<Long>("operate_begin_time");

    // 配置织入点
    @Pointcut("@annotation(com.wxmit.framework.web.operatelog.Log)")
    public void logPointCut()
    {
    }

    /**
     * 处理请求前执行
     */
    @Before(value = "@annotation(controllerLog)")
    public void boBefore(JoinPoint joinPoint, Log controllerLog)
    {
        OPERATE_BEGIN_THREADLOCAL.set(System.currentTimeMillis());
    }

    /**
     * 处理完请求后执行
     *
     * @param joinPoint 切点
     */
    @AfterReturning(pointcut = "@annotation(controllerLog)", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, Log controllerLog, Object jsonResult) {
        handleLog(joinPoint, controllerLog, null, jsonResult);
    }

    /**
     * 拦截异常操作
     *
     * @param joinPoint 切点
     * @param e         异常
     */
    @AfterThrowing(value = "@annotation(controllerLog)", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint, Log controllerLog, Exception e) {
        handleLog(joinPoint, controllerLog, e, null);
    }

    protected void handleLog(final JoinPoint joinPoint, Log controllerLog, final Exception e, Object jsonResult) {
        try {

            // *========数据库日志=========*//
            SysOperateLogDTO operLog = new SysOperateLogDTO();
            operLog.setStatus(BusinessStatus.SUCCESS.ordinal());
            // 请求的地址
            String ip = ServletUtils.getClientIP();
            operLog.setOperIp(ip);
            operLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
            LoginUser loginUser = StpUserUtil.getLoginUser();

            operLog.setOperUserId(StpUserUtil.getUserId().toString());
            operLog.setOperatorType(loginUser.getUserType());
            operLog.setOperLocation(loginUser.getLoginLocation());

            if (e != null) {
                operLog.setStatus(BusinessStatus.FAIL.ordinal());
                operLog.setErrorMsg(StringUtils.sub(e.getMessage(), 0, 2000));
            }
            // 设置方法名称
            Class<?> targetClass = joinPoint.getTarget().getClass();
            LogModule logModule = targetClass.getAnnotation(LogModule.class);
            String className = targetClass.getName();
            String methodName = joinPoint.getSignature().getName();
            operLog.setMethod(className + "." + methodName + "()");
            // 设置请求方式
            operLog.setRequestMethod(ServletUtils.getRequest().getMethod());

            operLog.setOperTime(new Date());

            // 耗时
            operLog.setConsumeTime(System.currentTimeMillis() - OPERATE_BEGIN_THREADLOCAL.get());

            // 处理设置注解上的参数
            getControllerMethodDescription(joinPoint, controllerLog,logModule, operLog,jsonResult);
            if(StringUtils.isNotBlank( operLog.getModule()) ){
                // 保存数据库
                operateLogApi.saveLog(operLog);
            }
        } catch (Exception exp) {
            // 记录本地异常日志
            log.error("==前置通知异常==");
            log.error("异常信息:{}",exp.getMessage(), exp);

        }finally {
            OPERATE_BEGIN_THREADLOCAL.remove();
        }
    }

    /**
     * 获取注解中对方法的描述信息 用于Controller层注解
     *
     * @param log     日志
     * @param operLog 操作日志
     * @throws Exception
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, Log log,LogModule logModule, SysOperateLogDTO operLog, Object jsonResult) throws Exception {
        // 设置action动作
        operLog.setBusinessType(log.type().ordinal());
        // 设置标题
        operLog.setModule(StringUtils.isBlank(log.module())?logModule.value():log.module());

        operLog.setName(log.name());

        // 是否需要保存request，参数和值
        if (log.logArgs()) {
            // 获取参数的信息，传入到数据库中。
            setRequestValue(joinPoint, operLog);
        }
        // 是否需要保存response，参数和值
        if (log.logResultData() && ObjectUtil.isNotNull(jsonResult)) {
            operLog.setJsonResult(StringUtils.sub(JsonUtils.toJsonString(jsonResult), 0, 2000));
        }

    }

    /**
     * 获取请求的参数，放到log中
     *
     * @param operLog 操作日志
     * @throws Exception 异常
     */
    private void setRequestValue(JoinPoint joinPoint, SysOperateLogDTO operLog) throws Exception {
        String requestMethod = operLog.getRequestMethod();
        if (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod)) {
            String params = argsArrayToString(joinPoint.getArgs());
            operLog.setOperParam(StringUtils.sub(params, 0, 2000));
        } else {
            Map<?, ?> paramsMap = (Map<?, ?>) ServletUtils.getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            operLog.setOperParam(StringUtils.sub(paramsMap.toString(), 0, 2000));
        }
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(Object[] paramsArray) {
        StringBuilder params = new StringBuilder();
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (ObjectUtil.isNotNull(o) && !isFilterObject(o)) {
                    try {
                        params.append(JsonUtils.toJsonString(o)).append(" ");
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        return params.toString().trim();
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }
}
